Portion control is one of the keys to maintaining a healthy weight. Instead of counting calories or using measuring cups, quickly estimate portion sizes for your proteins, veggies, carbs, and fat by looking at your hands, as these visual guides illustrate.

Using your hand to estimate your portions is familiar territorywe've discussed before. While other guides have shown us how to measure an inch, teaspoon, or ounce with your hand, these portion control guides from Livestrong are much easier to remember and simpler to follow. You only need to know four hand equivalents for the portions of a complete meal: